When to plant brussels sprouts in Oregon

Brussels sprouts
Plant out in Portland
Feb 11–Feb 25

Across Oregon the window opens between January 28 and May 26. Find your city below; the dates follow each town's own average last frost.

Start indoors, Portland
Dec 31–Jan 14
Plant out, Portland
Feb 11–Feb 25
Fall planting, Portland
Aug 11–Aug 25
Last frost, Portland
Feb 25

Start seeds indoors 6–8 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 14–16 weeks before the first frost. Sprouts taste best after a few frosts. Plan the harvest for late fall.

Brussels sprouts planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
PortlandFeb 11–Feb 25
SalemMar 20–Apr 3
EugeneMar 28–Apr 11
GreshamMar 2–Mar 16
HillsboroApr 2–Apr 16
BendMay 23–Jun 6
BeavertonMar 18–Apr 1
MedfordMar 25–Apr 8
CorvallisApr 3–Apr 17
SpringfieldMar 28–Apr 11
TigardMar 18–Apr 1
AlbanyApr 3–Apr 17
AlohaJan 28–Feb 11
Lake OswegoMar 4–Mar 18
Grants PassMar 25–Apr 8
KeizerMar 20–Apr 3
RedmondMay 26–Jun 9
Oregon CityMar 4–Mar 18
McMinnvilleMar 22–Apr 5
WoodburnMar 2–Mar 16
BethanyJan 28–Feb 11
Happy ValleyMar 4–Mar 18
TualatinMar 18–Apr 1
WilsonvilleMar 4–Mar 18
Forest GroveApr 2–Apr 16
NewbergMar 7–Mar 21
West LinnMar 4–Mar 18
RoseburgMar 9–Mar 23
HayesvilleMar 20–Apr 3
MilwaukieFeb 11–Feb 25
All 34 cities
CityStart indoorsPlant outFall plantingLast frost
PortlandDec 31 to Jan 14Feb 11 to Feb 25Aug 11 to Aug 25Feb 25
SalemFeb 6 to Feb 20Mar 20 to Apr 3Jul 12 to Jul 26Apr 3
EugeneFeb 14 to Feb 28Mar 28 to Apr 11Jul 3 to Jul 17Apr 11
GreshamJan 19 to Feb 2Mar 2 to Mar 16Jul 31 to Aug 14Mar 16
HillsboroFeb 19 to Mar 5Apr 2 to Apr 16Jul 3 to Jul 17Apr 16
BendApr 11 to Apr 25May 23 to Jun 6Jun 6
BeavertonFeb 4 to Feb 18Mar 18 to Apr 1Jul 17 to Jul 31Apr 1
MedfordFeb 11 to Feb 25Mar 25 to Apr 8Jul 9 to Jul 23Apr 8
CorvallisFeb 20 to Mar 6Apr 3 to Apr 17Jul 8 to Jul 22Apr 17
SpringfieldFeb 14 to Feb 28Mar 28 to Apr 11Jul 3 to Jul 17Apr 11
TigardFeb 4 to Feb 18Mar 18 to Apr 1Jul 17 to Jul 31Apr 1
AlbanyFeb 20 to Mar 6Apr 3 to Apr 17Jul 8 to Jul 22Apr 17
AlohaDec 17 to Dec 31Jan 28 to Feb 11Aug 15 to Aug 29Feb 11
Lake OswegoJan 21 to Feb 4Mar 4 to Mar 18Jul 29 to Aug 12Mar 18
Grants PassFeb 11 to Feb 25Mar 25 to Apr 8Jul 8 to Jul 22Apr 8
KeizerFeb 6 to Feb 20Mar 20 to Apr 3Jul 12 to Jul 26Apr 3
RedmondApr 14 to Apr 28May 26 to Jun 9Jun 9
Oregon CityJan 21 to Feb 4Mar 4 to Mar 18Jul 29 to Aug 12Mar 18
McMinnvilleFeb 8 to Feb 22Mar 22 to Apr 5Jul 18 to Aug 1Apr 5
WoodburnJan 19 to Feb 2Mar 2 to Mar 16Jul 25 to Aug 8Mar 16
BethanyDec 17 to Dec 31Jan 28 to Feb 11Aug 15 to Aug 29Feb 11
Happy ValleyJan 21 to Feb 4Mar 4 to Mar 18Jul 29 to Aug 12Mar 18
TualatinFeb 4 to Feb 18Mar 18 to Apr 1Jul 17 to Jul 31Apr 1
WilsonvilleJan 21 to Feb 4Mar 4 to Mar 18Jul 24 to Aug 7Mar 18
Forest GroveFeb 19 to Mar 5Apr 2 to Apr 16Jul 6 to Jul 20Apr 16
NewbergJan 24 to Feb 7Mar 7 to Mar 21Aug 2 to Aug 16Mar 21
West LinnJan 21 to Feb 4Mar 4 to Mar 18Jul 29 to Aug 12Mar 18
RoseburgJan 26 to Feb 9Mar 9 to Mar 23Jul 29 to Aug 12Mar 23
HayesvilleFeb 6 to Feb 20Mar 20 to Apr 3Jul 12 to Jul 26Apr 3
MilwaukieDec 31 to Jan 14Feb 11 to Feb 25Aug 11 to Aug 25Feb 25
Klamath FallsApr 14 to Apr 28May 26 to Jun 9Jun 9
AshlandMar 11 to Mar 25Apr 22 to May 6Jun 18 to Jul 2May 6
SherwoodJan 24 to Feb 7Mar 7 to Mar 21Aug 2 to Aug 16Mar 21
LebanonJan 17 to Jan 31Feb 28 to Mar 14Jul 29 to Aug 12Mar 14

Questions

When should I plant brussels sprouts in Oregon?

In Portland, plant out from February 11 to February 25. Across Oregon the window opens between January 28 and May 26, depending on the local last frost.

How is this date worked out?

Start seeds indoors 6–8 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 14–16 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Oregon

Brussels sprouts in other states

Frost dates for every city in Oregon